Pirates' overlooked pitching prospect could complicate their biggest offseason priority

The Pittsburgh Pirates have plenty of questions to answer about their starting rotation this offseason, and finding a reliable left-handed starter figures to be among their priorities. But before general manager Ben Cherington starts searching the free-agent market, he might want to take another look at what the Pirates already have in their farm system.

Connor Wietgrefe isn't exactly a household name, even among Pirates prospects. However, the 24-year-old southpaw has quietly pitched his way into the organization's major-league plans, potentially complicating Pittsburgh's approach to upgrading its rotation for 2027.

A seventh-round pick out of Minnesota in the 2024 MLB Draft, Wietgrefe posted a 3.27 ERA with 134 strikeouts over 151 1/3 innings across Double-A Altoona and Triple-A Indianapolis in 2026. His numbers actually improved following his promotion to Indianapolis in June, where he recorded a 3.08 ERA across 15 starts.

Wietgrefe has compiled a 3.12 ERA across 277 1/3 professional innings. Despite that consistency, he ranks just No. 29 among Pittsburgh's top 30 prospects, according to MLB Pipeline.

Part of the reason for Wietgrefe's relatively modest prospect profile is that he doesn't possess the overpowering arsenal typically associated with Pittsburgh's most exciting young pitchers. His fastball generally sits around 91 mph, a far cry from the triple-digit heat Pirates fans have grown accustomed to seeing from Paul Skenes and Jared Jones.

Still, Wietgrefe's results suggest that velocity isn't everything. And for a Pirates organization that has invested heavily in developing high-upside pitching talent, his emergence presents an interesting opportunity.

Connor Wietgrefe could give Pirates another affordable rotation option

Pittsburgh's projected 2027 rotation already features Skenes, Jones, Braxton Ashcraft, Bubba Chandler and Mitch Keller. All five are right-handed, creating an obvious opportunity to add a southpaw who can provide a different look against opposing lineups.

There's also the issue of durability. The Pirates entered 2026 expecting their pitching staff to be a major competitive advantage. Instead, their starters finished with a 4.23 ERA, ranking in the middle of the league, while injuries to Keller and Ashcraft exposed the organization's lack of dependable depth. Adding another proven starter would help address those concerns, regardless of which arm he throws with.

But Wietgrefe's development raises a bigger question: How much should Pittsburgh spend externally when a potentially useful internal option is already approaching the majors?

Wietgrefe isn't required to be protected from the Rule 5 Draft until 2027, meaning the Pirates don't face an immediate deadline to add him to their 40-man roster. Nevertheless, his Triple-A performance has made him a legitimate candidate for major-league consideration sooner rather than later.

Dominating minor-league hitters is considerably different from navigating major-league lineups, particularly for a pitcher who relies more on execution than overwhelming velocity. Wietgrefe still has plenty to prove, and assuming he'll seamlessly transition into a big-league rotation would be an unnecessary gamble. Still, the Pirates should be encouraged by the possibility of another homegrown contributor.

With Brandon Lowe approaching free agency, significant arbitration raises looming and multiple areas of the roster requiring attention, the Pirates need to maximize every dollar they spend this offseason. If Wietgrefe can establish himself as a legitimate depth option, that could give Cherington additional flexibility to pursue offensive upgrades or experienced pitching help elsewhere.

The key, of course, is recognizing the difference between having an intriguing internal alternative and having a proven major-league solution.

Wietgrefe's emergence shouldn't become another excuse for the Pirates to avoid spending. But it should give them another reason to believe their pitching pipeline can produce meaningful contributors beyond its most recognizable names.

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